Rotary stand-pipe joint.



W. S. PHELPS.

ROTARY STAND PIPE JOINT.

APPLIoATIoN FILED MAY'zz, 1909.

Patented Dec. 14, 1909.

WEA/roze.- JM,

l IVTNESSES:

ATTORNEY.

"enabled to turn easily 'quiring constant attention vadapted to be constructed at moderate exi the complete joint and a section of pipe con- .seetioiial ,view of the UNITED STATES PATENT oEEIoE.

WALTER scoTTPHELPs, or MUNCIE, INDIANAz To all whom it 4may concern.' l Be it known that I, VALTE-n SCOTT! PHELPs, a citizen of the United States` rei siding at Muncie. in the county of Delaware l and State of Indiana, have invented certain i new and useful Improvements in Rotary Stand-Pipe Joints: and l do `declare the folj lowing to be a full, clear. and exact descripi tion of the invention, reference being had to the accompanying' drawings, and to the tigures of reference marked thereon. which form a part of this specification.

This invention relates to swivel or rotary stand pipes and has reference particularly to a combined pneumatic and liquid packed swivel joint. whereby a stand pipe may be with respect to the Supporting stationary portion .of the pipe without leaking at the joint.

The object of the invention is to provide an improved swivel or rotary joint that will be water tight and operate easily in connection with water cranes or other vertical pipes that require to be turned for any purpose.

A further object is to provide a pipe joint of the above-mentioned character that may be thoroughlylubricated, and without reto keep it in workmg order. to the end that the joint shall be pense and be reliable, durable and economical 1n use.

lith the above-mentioned and other objects in view the invention consists in a swivel pipe joint having oil chambers and air chambers therein in which air may be trapped and compressed, the joint being provided, with ball-bearings for supporting the movable portion of the pipe, and the invention consists further in certain novel features of construction, and in the parts and combinations and arrangements of parts, as hereinafter particularly describcd-and then defined in the appended claims.

Referring to the drawings Figure 1 is an elevation of the improved joint connerted with pipe sections; Fig. a top plan thereof; Fig. 3, atop plan of the lower part of the joint; Fig. 4, an inverted plan of the upper part of the joint; Fig. 5, a plan view of a packing ring preferably employed in the joint; Figo, an inverted plan View of Specification of Letters Patent. Application tiled May 22, 1909.

nected thereto; and Fig. 7, a vertical central joint and pipeisections.

ROTARY STAND-PIPE JOINT.

Patented niet. .14, 1909. Serial N0. 497,712.

Similar reference characters 1n the several figures of the drawings indicatecorresponding parts or features of construction referred to herein.

In the drawings. referring to the details of construction. the joint comprises an ane nular lower part 1 which is designed to be' stationaryand preferably having an annular projection 2 at the under side thereof. the part heilig secured to a section S of pipe which will be understood as the inlet pipe to the joint; said lower part preferably havinga recessed portion ,-1 therein which is somewhat greater in diameter than the pipe 3. The upper end of the part 1 has a joint face 5 in which is an annular groove t to receive a packing ring 7 composed preferably of leather and having a beveled joint 7', the packing ring filling the groove and projecting upward above the joint face 5. The part 1 has an annular portion 8 extendingabout the packing ring and upward beyond the plane of the joint face a suitable distance, and preferably has a beveled or flared inner face 8. and an annular oil groove 9 is formed in the part l of suitable depth at the outer side'of the portion 8 for holding oil. another annular portion `1() preferably having a beveled inner side 10 extending upward beyond the plane of the joint face a suitable distance and around the portion 8 beyond the groove t). Another annular groove 11 is formed in the lower or base part 1 beyond the portion 10 and is adapted to hold oil. the groove 1l having a suitable number of bearing balls 12 therein, the groove serving as a ball race.

The joint comprises also` an upper annular part 13 which is designed to move with respect to the lower or base part, and it preferably hais an annular top thereof, a pipe section 15 being secured rigidljsto the upper part 12% and will1L be understood as the swiveled discbargeppipc. The under side of the upper part 13 'has an annular bearing projection 16 V thereon which tits into the groove 11 and bears on the balls 12, whereby the uppeixpart and the nuivable section.' of the pipe, are supported so that the pipe may be turned about its axis. The part 13 has a suitable number of oil holes 17 therein that extend to the bot-I "an of'qthe projection 1G, normally closed by screw plugs 18. A band 19 extends closely about the upper part 13 and is secured thereto removably by a Silit-v the oil holes being ,projection 14 on the.

able number of set screws Q0, the band extending down against the periphery of the lower part l and havinO an in 'ardly extending tiange 19 engaging the under portion of the lower part l, preferably extend'- ing into a suitable recess in the part l, so that the two parts are normally held together but permitting the upper part 13 to move freely. At the under Side ot' the part lS'an air space 21 is termed that receives the an# nular portion 10, and the under side has an annular projection QQthat extends into the groove 9, the projection being adjacent to 4and extending about the portion 8, the part 1&5 having a suitable number of oil holes 2?) therein that extend to the bottom ot' the projection 22, the upper ends of the oil holes being' normally closed by screw plugs 24. An annular air Space )5 is formed adjacent to the. projection 22 into which the portion 8 extends. Another animlar projection 2G is formed on the. under side ot' the partl ot' suitable length to extend close to the joint t'ace 5 and ithasan annular groove. 27 therein receiving the paclt'ing ring 7. ll`he part 12E has a eounter-bore 28 the diameter ot which is greater than the external diameter ot the pipe section 15, so that an air chamber or space is formed in the part above the. air space formed by the recessed portion l, the. air spaces being practically continuous one. with the other around a tube 2t) which is secured to the upper portion of the part 13 in alinenient with the pipe section l5, the tube extending down into the pipe section P, and having an externally beveled end 29 to readily lead air that may enter with the passing' water into the space between the tube and the inlet. pipe and up to the air chamber surrounding the tube. lhe grooves` il and ll should be tillcd with a suitable quantity ot oil, leaving` air spaces above the oil at opposite sides ot the annular portion 2Q into which the air which may leak past the joint ring 7 may be compressed to a degree corresponding to the pressure. thatmay be exerted by the flowing water.

lt should be understood that the opposing or innerfsidcs of the two parts ot the joints obviously should be machine titted, and while the. rupper part. is supported on the bearing balls `l2, it is preferable that the projection 2o be close to the joint face 5 without, however, having bearing contacttherewith, and the. portionsl S and 10 should be close to the. adjacent under side of the upper partv il?) withmitlaiding in supporting it.

ln practical use the water, or other liquid, llows upward in the pipe 3 and through the tube 2t) and out through the pipe 15. The

air peut up in the air chamber around the` tube will be compressed by the pressure of the llowing liquid so that the liquid usually can not riso in the air chamber suliiciently far to cause leakage past the packing ring 7, although in some cases a smal-l quantity ot' the air and liquid may escape past the paching ring and enter the air chamber 25 in which the air will be trapped upon the liquid by the oil in the groove 9 and become eoni pressed.- The oil will be prevented from being forced outy of the groove by air compressed in the chamber 2l where the air is ti'appcd by the oil in the groove l1. It will be seen, therefore. that corrosive action can not occur in the joint beause the water is excluded fron all metallic movable bearing parts, and the. latter are. thoroughly lubricated; therefore, the joint may at all times beltept in good working order with but lit-v tle attention in refilling the oil grooves at. long intervals.

lavingtlmsdescribcd tht` invention. what l claim as new isl. rotar)v pipe joint including an annular lower part having an annular oil-holding groove and also a ball-race therein adapted to hold oil. balls in the ball-race. and an annular upper part having an annular projcction thereon extendingl into the oilholding groove and also an annular projection extending into the ball-race onto the balls7 the upper part having also an annular pro jection thereon adjacent to the inner side o't the innermost wall ot the. oil-holding groove.

2. rotary pipe joint including an annular lower part having two annular concentric oil-holding grooves therein, the innermost walls ot the grooves being beveledat their extremities. and an annular upper part having an annular projection thereon extending into one ot the two oil-holding grooves and also anothe annular projection extending into the other one o'll the oil-holding grooves. the. upper part having also an annular projection thereon adjacent to the innermost wall of the innermost one oiC the grooves, the upper part being in proxim'it to the beveled extremities ot thewalls ofthe grooves.

3. A rotary pipe joint including an annular lower part having an annular` joint tace on its upper end and also an annular portion extending upward beyond the plane ot the joint face. the lower part having also an annular groove. therein extending downward trom the top of the annular portion to hold oil, and an annular upper part having an annular projection thereon extending into the groove. and yalso another annular projection extending opposite. and substantiallv to the. joint. faee,'the lower part rotatively supporting the upper part.4

A rotary pipe joint including an annular lower part having two 'annular concentric oil-holding grooves therein, the inner sides of the innermost Walls of the grooves being beveled at their extremities, an annun lar upper part having an annular projection thereon extending into one ot' the two oilholding grooves and also another' annular` projection extending' into the other one ot' i n g jacent to the beveled side of the innermostwall ot the innermost one ot the grooves, the

upper part being inproximity tothe beveled t is an anrrlar packing groove, the lower part j having o an annular oil-holding groove and also a hall-race therein adapted to hold oil, halls in the ball-race, a packing ring in the jjiaeliing groove, an annular upper part having an annular projeetion thereon extgnding into the oil--holdinggroov andalso an annular projection extending into the halhraee onto the halls, thenpper part heilig provided with an annular projection opjnr-.site to nai-tl joint face and that has a groove therein receiving said packing ring. and a. tuhe attached to the inner side ot the uper part anti extending through the lower part.

t3. it .rotary pipe joint iireludinlgr an annu lar lower part ha ving' an annular oil-holtling groote and :dao a 'l all-race therein adapted to hold oil, hallsl in the hall-rime, an annular upper parti having; an annular projeetion thereon extending` into the oil holding groove and also an annular projection eittending; into the hall-race onto the halls, the upper part haring; also an annular projection thereon adjacent to the inner side of the innermost `wall oth the tnhholding groove, and

` a hand serured 'to orient the two parts and engaging the other one ot the two parts of the. joint to prevent eeparatnin of the two the oil-holding groo\'es.'tl1e upper part hav-4 .d

also an annular projection thereon adparts. tlnx two parts being' adapted torondurt litjnid therethrough.

T. A rotary pipe joint inrlnding an attritilar lower part having an annular joint t'aee on its upper end and also an annular portion extending' upward heyond the plane otl the joint fare. the joint tare having` an annular parkingI groove therein. the lower part hariner also an annular groove therein that is outward heyond the joint tace to hold oil, a packing' ring in the parking groove. and an annular upper part having an annular projection thereon extending' into the out wardm-ranged `roove and also another annular projertion extending opposite to the joint fare and having' a parking groove in its lower end rerei\'in;, the parlt'iireL ring. the lower part rotatirely supporting' the upper part.

ti. A rotary pipe joint including an antiular lower part haring an annular joint t'aee on its upper end and also an annular portion extending upward beyond the 'plane ot the joint fare, the lower part having also au annular liallfra'ee therein that is outward heyond the annular portion and adapted to hold oil. halls movable in the hall-rare. an annular upper part having an annular projertion thereon extendilrt;` into tht` hall-race onto the halls to niove thereon and also anothe annular projection extending' opposite and substantially to the joint tare, and a Joand set-tired to one ot' the two parts and niovahly engaginrr the other one ot' the two parts ot the joint to prevent separation ot' .the two parte.

In testimony whereot, l atiix nty signature in presence ot' two witnesses.

VVALTIGR SCOTT llllCLlS.

Witnesses:-

Hanna l). lyartinss, l". Linolrroxv Barinas. 

